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Finding the Fourth Proportional to 16,471.12, 22,730.16 and 8,917.45

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Solution

The fourth proportional to 16,471.12, 22,730.16 and 8,917.45 is: 12,306.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,471.12 : 22,730.16 = 8,917.45 : x
  2. Step 2: Convert to fraction form
    16,471.12/22,730.16 = 8,917.45/x
  3. Step 3: Cross multiply
    16,471.12x = 22,730.16 × 8,917.45
  4. Step 4: Simplify right side
    16,471.12x = 202,695,020.70
  5. Step 5: Solve for x
    x = 202,695,020.70/16,471.12
  6. Step 6: Final answer
    x = 12,306.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.